Ferrochel™ Iron Bisglycinate Gentle & Non-Constipating* NOW® Iron Complex is a unique blend of Ferrochel™ Iron (a bioavailable form of iron) and its important co-nutrients combined with complementary botanicals. Iron is a mineral required for the formation of hemoglobin a molecule that transports oxygen to the cells throughout the body in red blood cells.* Vitamin B-12 and folate are necessary for red blood cell production while vitamin C is known to enhance iron absorption from the GI tract.* This vegetarian formula is well-tolerated and non-constipating and has been designed to maximize iron absorption and utilization by the body.* Natural color variation may occur in this product.